Răspunsuri

2014-11-14T13:15:50+02:00
1430*2=2860, 2860+28=2888, 2888/2=1444, 2860-1444=1416
rasp:1444 si 1416
2014-11-14T13:16:22+02:00
Ma= (a+b)/2; b=a-28; (a+a-28)/2=1430 2a-28=1430*2= 2a=2860+28; 2a=2888; a=1444; b= 1444-28; b=1416